Sheet-combining machine.



No. 897,757. PATENTED SEPT. 1, 1908.

I. W. MARSHALL. SHEET COMBINING MACHINE.

APPLICATION FILED 0631.8, 1907.

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No. 897,757. PATENTED SEPT. l, 1908.

I. W. MARSHALL. SHEET COMBINING MACHINE.

APPLICATION FILED OUT. 8, 1907.

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SHEET COMBINING MACHINE.

AIPLIOATION FILED 0013.8, 1907.

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rmrrnn srnrns rarnnr onrron ISRAEL W. MARSHALL, OF YQRKLYN, DELAWARE, ASSIGNOR OF ONE-HALF TO THOMAS E. MARSHALL, OF YORKLYN, DELAWARE.

SEEET-COIIBINING "MACHINE.

' Specification of Letters Patent.

Patented Sept. 1, 1908.

Application filed October 8, 1907. Serial No. 396,403.

To all whm it may concern:

Belt known that I, ISRAEL W. MARSHALL, a citizen of the United States, residing at Yorklyn, in the county of Newcastle and State of Delaware, have invented certain new and usefullmprovements in Sheet-Combining Machines, of which the following is a sheets are combined, indissolubly into one.

The objects are:To provide a machine adapted to operate on a plurality of rolled sheets, unro ling, -completely submerging and saturating each sheet from both sides,

within a tank, said submerging device hav' ing novel means whereby it may be raised or lowered with reference to the tank, and devices combined with the machine whereby the several sheets are pressed and caused to coalesce, in the presence of heat, into a single contmuous unit.

A further object is the conservation of the impregnating solution used in the tank'and means for the convenient inspection, removal or insertion of the sheets in their course through the machine.

These and other objects are attained by the novel combination and arrangement of parts in the mechanism hereinafter fully described and shown in the accompanying drawings, forming part of these specificat1ons and in which have'been used similar characters on similar parts.

Figure 1, is a side elevation of the complete machine. 'Fig. 2, is a plan view of the same. Fig. 3, is a perspective view of the tank submerging rolls. Fig. 4, is a detail of the scraping device. Fig. 5, is a side elevation of the steam appliance, and Fig. 6, is a front elevation of the same.

The machine comprises a substantial frame 1, supported by suitable pedestals 2,

resting on a firm foundation; the rolls of paper, made of vegetable iiber and of an open, porous texture, are provided with shafts 3, the ends of which rest in open bearings formed at the upper surface of the roll frame 4, which may be an integral part of the frame 1, or detached from it as referred.

While three rolls are s 10WI1 on the frames it is understood that a greater or lesser number may be similarly positioned, according to i the thickness of the finished product required; each of the several rolls are provided with a friction device 5, acting as a drag or brake to prevent the too rapid unwinding of the sheets and keep the same under amoderate tension as they are unrolled in their passage over the roller 6, common to all the sheets, and which is allowed to revolve freely in its bearings 7. From the roller 6, the sheets are separated, each passing over individual rollers 8, mounted in bearings 9, so formed that the said rollers are readily removable therefrom, through open angular slots in the plate 10, containing the bearings, and which form the upper part of the stand 11, attaching at its base to the frame 1.

The tank 12, secured between the sides of the frame, is preferably constructed of cop per or other material non-corrodible by the iquids contained within; it is -made slightly wider than the sheets to be immersed, with a curved front and provided with a suitable drawoff valve, as at 13. Mounted on its reinforced upper side edges are bearings 14 and 14, and 15 and 15 in the first of which are pivoted levers 16 and 16, having their lower ends pivotally connected with the roll holding frames 17 and 17, said levers 16 and 16,

being of an appropriate length to swing freely within the tank 12 and clear the front end which is curved to a corresponding radius. I

Levers 18 and 18', are pivoted at the rear 'bearings 15 and 15, and are-similarly connected to the rear of the roll holding frames 17, which said frames carry the rollers 19, so mounted as to be freely revoluble and arranged in parallel airs in such manner that sheets from the in ividual rollers 8,, are kept separate from each other and from contact with the walls of the tank in their passage through the liquid therein, on the rollers it).

Straight extensions 20 and 20, of the levers 1'8 and 18', have attached, at their upper ends, the chains 21 and 2] the same being wound on the shaft 22, contained. in bearings 23 and 23, attached to the frame 1, at the rear of the tank; the shaft 22, is provided with the hand-Wheel 24, for operating and alsothe ratchet wheel 25, and pawl catch 26, to hold the shaft against revolution when the levers are raised from the tank; the foregoing mechanism obviously being capable of accomplishing this pur ose and that of raising the rollers abovean arallel to the tank at such times as may be es ira ble. The front bearings 14 and 14, are extend- 5 ed upward and towards the front, as at 27 and 27, to provide seats for square scrapers 28 and29, removably connected but non-rotatable, their purpose beingto remove the excess liquid from the lower and upper sheets, as they pass between them from the rolls 19, such excess being returned to the tank below. "From the scra ers thesheets, ,now in contact with each ot er, pass circuitousl" over the cylinder 30, between it and the ower fixed cylinder 31, which it is caused to partially surround, being delivered from the lower side to subsequent operations, not a part of this invention.

The cylinder '30, is provided with stub and 32, slidably connected to guides on the angular UiPPGIZPOItIOII of the frame 33; on the top 0 these bearings are eyes in which are secured chains 34 and 34, attached to the shaft 35, in such manner as 'to be wound thereon when the shaft is revolved, which it may be by reason of the gear wheel 36, secured on 1t beyond the bearings 37 and 37, which are rigidly ailixed to the extreme upper ends of the frame members 33. Motion is communicated to the worm gear wheel 36, by the worm 38, on the shaft 39, the latter being disposed parallel to the guides on the frame 33, to which it is secured b suitable bearings, and is provided at its ower end with a hand wheel 40, arranged convenient for operation at such times as it may be de sired to raise the cylinder 30.

The lower and largereylinder 31 ,is pro-,

40 vided with flanges 31, at both ends for the ur ose of uidin the sheet ro erl also it similar stub s afts at its e hds thh same revolving in fixed bearings 41 and 41, the lower part of which is integral with the frames 33, which are securely attached to the main frame -members 1. Beyond the bea 41, on the extending end of the shaft from t e cylinder 31, is affixed a spur gear 42, driven by the pinion\43, on a counter shaft-not shown,when the machine is in operatiofi; the upper cylinder 30, is driven by frictional contgict with the lower cylinder, or the inter osed heet, only. This extended shaft is hol ow and is connected-with a suitable stufiing box 44, in the steam case 45, having a pipe 46, from a supply source of steam, whereby a temperature of approximately 90 degrees Fahrenheit may be obtained in the cylinder31. The upper cylinder 30, has a similar hollow shaft extending through the bearings 32, and connecte in like manner with a stuffing box 46, in the steam case 47, which passes through a packed sleeve 48,thus allowing the cylinder to be raised,conneeting with a steam shafts set-in its ends, revolving in bearings 32 supply source as at 49, from which may be obtained a temperature ofapproximately 180 degrees, or 90 degrees greater than that of the lower cylinder, as it is found preferably to thus arrange the relative proportion of heat in said cylindersas indicated.

While any li uid ma be contained in the tank 12, and t e mac e used for divers purposes, in the manufacture of indurated iber, I prefer to use a solution of zinc chlorid, as the same has a certain affinity for ve etable fibers, causing them to partially ge atinize and combine under the a plication of heat and pressure for the cylin ers.

Obviously I may modify the details some- 'What without departing from the general spirit of the invention, hence do not Wish to be understood as limiting. the construction to the exact arrangement indicated.

Having thus described my invention, What 5 I claim as new and desire to secure by Let, ters Patent i s:

1. In a sheet combining machine the combination with a pair of heating cylinders arranged one above the other, of means for directing partially gelatinized sheets of paper between said cylinders, and means for driving the lower-cylinder whereby the sheets of paper will be combined as they pass between the cylinders.

2. In a sheet combining machine the combination with a air of revoluble heating cylinders arran e one above the other, of means for ireeting partially gelatinized sheets of paper between said cylinders, means 00 for raising the upper cylinder and means for drivin the lower cylinder, whereby the upper cy inder will be driven by frictional contact with the interposed sheets.

3. In a machine of the class described, the combination with a frame and tank, levers pivotally mounted on saidtank, carrying a roll-holding frame, scrapers arranged in advance of said tank, revoluble heating cylinders arranged at the front of the .machine, and means for swinging sai-d roll holding frame.

4. In a machine of the class described, the combination with a tank, drying and pressin cylinders, of a roll holding frame ivotal y mounted in said tank, means for irect ing sheets of aper to said rolls in said tank, and from saii rolls to said drying and pressin cylinders, and means for swinging said r0 1 holding frame.

5.- In a machine of the class described,'the combination with a tank rovided with bearings on its upper side e ges, adjacent each end, of levers pivotally mounted in said bearings, a roll holdin frame carried by said levers, and means or operating one pair of levers.

6. In a machine of the class described, the combination with a tank, of bearings secured on its upper side edges, one pair of bearings extendingnupwardly and forwardly In testimony whereof I have signed my forming seats, square scrapers arranged in name to this specification in the presence of 10 said seats, levers pivotally mounted in said two subscribing witnesses.

bearings carrying a roll holding frame, means 1SRAEL W. MARSHALL. 5 for directing sheets of paper through said Witnesses:

tank over said rolls and scrapers, and means WARREN E. WILLIS,

for swinging said roll holding frame. CHAS. E. POTTS. 

